Should be able to. I usually just do the ST_Buffer(geometry, double) Where double is the expanse in units of your spatial ref. So If I understand you correctly, you would put your buf-width in that slot. The last argument I think defaults to 8 and it basically the approximation you want to a circular radius (e.g. controls how many vertexes you end up with). Making this bigger will make your buffer more accurate but will make your geometry more hefty I think. hope that helps, Regina
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of RAVI KUMAR Sent: Saturday, June 07, 2008 12:37 AM To: postgis Subject: [postgis-users] Buffer Hi all, am attempting mineral prognostication. Input: Have a shape files with Linear features Can I buffer this with 'width' taken from the shape files attribute = buf-width Output: The result to contain a polygon layer with the Input's liear features grown as buffers depending on the attribute= buf-width. Have seen the PostGIS mnnual and found the following only. ST_Buffer(geometry, double, [integer]) Can this work as suggested ? Cheers Ravi Kumar
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